TerraForm Power Shares Higher As David Tepper Raises Take

Shares of

were trading higher by more than 4 percent after Friday's market open as a major investor disclosed an increased stake in the company. David Tepper's Appaloosa Capital

that it has increased in stake in Terraform to 10.88 percent from a prior 9.5 percent. Appaloosa Capital's increased stake comes at a time when shares of Terraform have lost more than 30 percent since the start of 2016 and around 75 percent over the past year.